rok commented on code in PR #55352: URL: https://github.com/apache/arrow/pull/55352#discussion_r4483787435
########## .github/workflows/unassign_bot.js: ########## @@ -0,0 +1,179 @@ +// Licensed to the Apache Software Foundation (ASF) under one +// or more contributor license agreements. See the NOTICE file +// distributed with this work for additional information +// regarding copyright ownership. The ASF licenses this file +// to you under the Apache License, Version 2.0 (the +// "License"); you may not use this file except in compliance +// with the License. You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, +// software distributed under the License is distributed on an +// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +// KIND, either express or implied. See the License for the +// specific language governing permissions and limitations +// under the License. + +const LABELS = ["good-first-issue", "good-second-issue"]; +const DAY = 24 * 60 * 60 * 1000; +const INACTIVITY_PERIOD = 15 * DAY; + +/** + * Returns whether two GitHub usernames match, ignoring case. + * + * @param {String} a + * @param {String} b + */ +const sameUser = (a, b) => + Boolean(a && b && a.toLowerCase() === b.toLowerCase()); + +module.exports = async ({ github, context }) => { + const { owner, repo } = context.repo; + + /** + * Retrieves all pages of a GitHub API response. + * + * @param {Function} method + * @param {Object} params + */ + const paginate = (method, params) => + github.paginate(method, { owner, repo, per_page: 100, ...params }); + + /** + * Posts a comment on the specified issue. + * + * @param {Number} issue_number + * @param {String} body + */ + const comment = (issue_number, body) => + github.rest.issues.createComment({ owner, repo, issue_number, body }); + + /** + * Removes the user from an issue and explains why they were unassigned. + * + * @param {Number} issue_number + * @param {String} login + * @param {String} message + */ + const unassign = async (issue_number, login, message) => { + await github.rest.issues.removeAssignees({ + owner, + repo, + issue_number, + assignees: [login], + }); + await comment(issue_number, message); + }; + + const processed = new Set(); + let failures = 0; + + // Process each newcomer label, avoiding duplicate issues. + for (const label of LABELS) { + const issues = await paginate(github.rest.issues.listForRepo, { + state: "open", + labels: label, + }); + + for (const issue of issues) { + if ( + issue.pull_request || + !issue.assignees?.length || + processed.has(issue.number) + ) { + continue; + } + processed.add(issue.number); + + // Retrieve the timeline to determine assignments and linked PRs. + let events; + try { + events = await paginate(github.rest.issues.listEventsForTimeline, { + issue_number: issue.number, + }); + } catch (error) { + failures++; + console.error(`Failed to retrieve timeline for #${issue.number}`, error); + continue; + } + + for (const { login } of issue.assignees) { + try { + // Use the most recent assignment to start the inactivity period. + const assignedAt = Math.max( + 0, + ...events + .filter( + event => + event.event === "assigned" && + sameUser(event.assignee?.login, login) + ) + .map(event => Date.parse(event.created_at)) + .filter(Number.isFinite) + ); + + if (!assignedAt) continue; + + // Find the assignee's linked PR. Each contributor is expected + // to have at most one linked PR for a particular issue. + const linkedPrs = events + .filter( + event => + event.event === "cross-referenced" && + event.source?.issue?.pull_request && + sameUser(event.source.issue.user?.login, login) + ) + .map(event => event.source.issue); + + let lastActivity = assignedAt; + + // Check the most recently updated open PR authored by the assignee. + const linkedPr = linkedPrs + .filter(pr => pr.state === "open") + .sort( + (a, b) => + Date.parse(b.updated_at) - Date.parse(a.updated_at) + )[0]; + + if (linkedPr) { + // Fetch the latest PR state and activity timestamp. + const { data: pr } = await github.rest.pulls.get({ + owner, + repo, + pull_number: linkedPr.number, + }); + + // Only an open PR authored by the assignee counts as activity. + if ( + pr.state === "open" && + sameUser(pr.user?.login, login) + ) { + const updatedAt = Date.parse(pr.updated_at); + if (Number.isFinite(updatedAt)) { + lastActivity = Math.max(lastActivity, updatedAt); + } + } + } + + if (Date.now() - lastActivity < INACTIVITY_PERIOD) continue; + + await unassign( + issue.number, + login, + `@${login}, you have been automatically unassigned from this issue ` + + `after 15 days without activity on your linked PR. If you are ` + Review Comment: What about when the issue is assigned, but there's no PR? -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
